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  • Title: Fertility of donor mares following nonsurgical collection of embryos.
    Author: Vogelsang SG, Sorensen AM, Potter GD, Burns SJ, Kraemer DC.
    Journal: J Reprod Fertil Suppl; 1979; (27):383-6. PubMed ID: 289813.
    Abstract:
    Embryos were collected nonsurgically on Day 7 or 8 after ovulation from 7 Quarter horse mares using a modified 30-ml Foley catheter to flush the uterine horn ipsilateral to the recent ovulation with 500 ml TCM-199 containing Hepes buffer. After collection, the uteri were infused with nitrofurazone to reduce the chances of infection due to the procedure. Eleven collections from 7 mares resulted in recovery of 9 embryos and nonsurgical transfer of 4 of these resulted in the birth of one foal. After collections, 8 oestrous cycles averages 22.75 days and 2 extended oestrous cycles were 43 and 59 days long respectively. Of 6 mares mated after one or two embryo collections, 5 conceived to a single service and the sixth during the third oestrus in which she was covered.
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